CuSO4(aq) + Zn(s) + Cu(s) + ZnSO4(aq) The single-replacement reaction above produces 189.0 g of copper and an unknown
concentration of zinc sulfate. With excess CuSO4, what mass of Zn was used?
Molar mass of Cu: 63.55 g/mol
Molar mass of Zn: 65.38 g/mol

g of zinc (Use 4 sig figs)

What were the success and failures that came to boyle’s excitements?

What can be added to the examples section of each circle? endothermic: ice melting into water, and a heat pack becoming warm exothermic: a glow stick glowing, and fireworks exploding endothermic: ice melting into water, and an instant ice pack turning cold exothermic: fireworks exploding, and gasoline burning endothermic: a glow stick glowing, and a heat pack becoming warm exothermic: an instant ice pack turning cold, and ice melting into water endothermic: gasoline burning, and an instant ice pack turning cold exothermic: ice melting into water, and an instant ice pack turning cold

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.